81909568

素因数分解:

$2^6\times {\mathrm{13}}^2\times {\mathrm{7573}}^1$

素因数の和:7611

約数の個数: 42

約数和(自身を含む): 176027334

約数和(自身を除く): 94117766

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 169, 208, 338, 416, 676, 832, 1352, 2704, 5408, 7573, 10816, 15146, 30292, 60584, 98449, 121168, 196898, 242336, 393796, 484672, 787592, 1279837, 1575184, 2559674, 3150368, 5119348, 6300736, 10238696, 20477392, 40954784, 81909568]

約数ペア:

[(1, 81909568), (2, 40954784), (4, 20477392), (8, 10238696), (13, 6300736), (16, 5119348), (26, 3150368), (32, 2559674), (52, 1575184), (64, 1279837), (104, 787592), (169, 484672), (208, 393796), (338, 242336), (416, 196898), (676, 121168), (832, 98449), (1352, 60584), (2704, 30292), (5408, 15146), (7573, 10816)]